According to reports, late Michael Jackson‘s personal assistant covered a bunch of expenses while the King of Pop was living in Vegas. Now, three years later, he’s finally getting around to demanding payment.

Michael Amir Williams filed a creditor’s claim with the Michael Jackson Estate, claiming he’s still out $28,569.83. Among the items listed — an $11K power bill, a $13K vehicle lease and almost $1K in phone bills.

We have no idea why he took so long to file the claim. Jacko kicked the bucket back in June 2009 … and most everyone else filed their claims years ago. In fact, he may have missed the filing deadline by a long shot.